摘要
针对目前超疏水木材颜色单一以及构建方法不够环保等问题,提出一种基于金属氧化物的彩色超疏水涂层的绿色构建方法,以实现彩色超疏水木材的构建以及木材表面颜色的调控。选取杉木为研究对象,将具有不同颜色的金属氧化物与聚二甲基硅氧烷(PDMS)在水溶剂中共混制备涂料,涂覆在木材表面得到不同颜色的超疏水涂层,进一步通过调整涂料中金属氧化物的质量比调控颜色梯度。采用多种方法表征发现,涂饰木材的表面具有由粒子排列形成的微米/纳米分级仿生荷叶结构,水接触角大于150°。通过调整金属氧化物种类,成功制备9种不同颜色的超疏水木材,使木材具有超疏水性和颜色多样性。研究结果对拓展超疏水木材在装饰领域的使用范围具有重要意义,为彩色超疏水木材的构建提供理论依据。
To improve color regulation of superhydrophobic wood with a sufficient green construction method,a colored superhydrophobic coating agent based on metal oxide was proposed to realize the construction of colored superhydrophobic wood and the surface of wood.Chinese fir(Cunninghamia lanceolata)was chosen as the research object to establish a superhydrophobic surface.Superhydrophobic coatings with different colors were prepared by simply mixing metal oxides of various colors with polydimethylsiloxane(PDMS)in an aqueous solvent.The color gradient control of colored superhydrophobic wood was achieved by adjusting the mass ratio of different metal oxides.It was found that the treated wood had good superhydrophobic properties.Its surface had a micron-and nanometerscale hierarchical bionic lotus leaf surface structure formed by particle arrangement.The contact angle of water droplets was more than 150°.By changing the types of metal oxides,nine kinds of colored superhydrophobic wood with different colors were successfully prepared.Superhydrophobic colored coatings conferred super-hydrophobicity and color diversity on the wood.This research findings significantly expand the application of superhydrophobic wood in the decorative field and provid the theoretical basis and reference for the construction of colored superhydrophobic wood.
作者
刘敏
李蕾
邓松林
贾闪闪
吴义强
卿彦
LIU Min;LI Lei;DENG Song-lin;JIA Shan-shan;WU Yi-qiang;QING Yan(School of Materials Science and Engineering,Central South University of Forestry and Technology,Changsha 410004,Hunan,China)
出处
《木材科学与技术》
北大核心
2022年第6期61-69,共9页
Chinese Journal of Wood Science and Technology
基金
国家自然科学基金面上项目“木质材料VOCs智能微纳反应器仿生构筑及其诱捕消解机制”(31870552)。
关键词
木材
彩色超疏水表面
金属氧化物
颜色调控
wood
colored superhydrophobic surfaces
metal oxides
color regulation
